Differential lipid and fatty acid profiles of photoautotrophic and heterotrophic Chlorella zofingiensis: Assessment of algal oils for biodiesel production

被引：316

作者：

Liu, Jin ^{[1
]}

Huang, Junchao ^{[1
]}

Sun, Zheng ^{[1
]}

Zhong, Yujuan ^{[1
]}

Jiang, Yue ^{[2
]}

Chen, Feng ^{[1
]}

机构：

[1] Univ Hong Kong, Sch Biol Sci, Hong Kong, Hong Kong, Peoples R China

[2] Hong Kong Baptist Univ, Dept Biol, Kowloon Tong, Hong Kong, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 01期

关键词：

Biodiesel; Chlorella zofingiensis; Fatty acid; Heterotrophic; Lipid; MICROALGA; ACCUMULATION; GROWTH; PROTOTHECOIDES; ASTAXANTHIN; REAGENT; NITRATE;

D O I：

10.1016/j.biortech.2010.06.017

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The objective of this study was to document and compare the lipid class and fatty acid composition of the green microalga Chlorella zofingiensis cultivated under photoautotrophic and heterotrophic conditions. Compared with photoautotrophic cells, a 900% increase in lipid yield was achieved in heterotrophic cells fed with 30g L-1 of glucose. Furthermore heterotrophic cells accumulated predominantly neutral lipids (NL) that accounted for 79.5% of total lipids with 88.7% being triacylglycerol (TAG); whereas photoautotrophic cells contained mainly the membrane lipids glycolipids (GL) and phospholipids (PL). Together with the much higher content of oleic acid (C18:1) (35.2% of total fatty acids), oils from heterotrophic C. zofingiensis appear to be more feasible for biodiesel production. Our study highlights the possibility of using heterotrophic algae for producing high quality biodiesel. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：106 / 110

页数：5

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